The son of former Alabama RB Bobby Humphrey, Marlon was an All-American High School player out of famed Hoover High School. He was also a state champion sprinter and hurdler on the track team. He ended up redshirting in 2014 as a freshman, and left after his redshirt sophomore season.
As a freshman, he finished with 45 tackles, 3.5 TFLs, eight PBUs, two forced fumbles, and three INTs.
As a sophomore, he totaled 36 tackles, three TFLs, five PBUs, a forced fumble, and two INTs.
Very fast, and quick in coverage.
Has been coached up in both multiple zone and man coverage.
Intelligent, and understands his various roles in coverage.
Gets into the passing lane and is able to disrupt flow.
Extremely effective when jamming receivers off of the snap.
Squeezes the receiver out of the play against the sideline.
Sheds blockers with ease and aggression.
Rakes for the ball during the initial tackle, makes turnovers happen.
Footwork is still not first rate, and he gets turned around often.
Technique in coverage breaks down from impatience to make plays.
Plays too out of control at times, and can be undisciplined.
Skills are more raw potential right now rather than refined gifts.
Can get taken on play fakes, and is prone to giving up big plays.
Is not a prototypical ball hawk.
Humphrey is a very raw, young player with enormous potential, but he lacks a refined quality about his play that belies his youth and general inexperience a this point. He only spent two functional seasons playing college football, so he still has a long way to go in terms of development and getting good coaching. He certainly had a decent start at Alabama on a major power program, but he needs some serious refinement before he can be expected to take on a major impact role. His coverage skills are his biggest concern right now, as he gives up too many big plays by not being able to recognize play fake and misdirection issues. If he can get the coaching and refinement he needs, he could be a major pro bowl corner down the line, but that is probably a year or two away, at least.